标签——QLabel的使用

#!/usr/bin/env python
#coding: utf-8


import sys
from PyQt4 import QtGui,QtCore

#GUI label组件中需要打印的信息
class Example():


    def display(self):

#       adict = ['cpu':'100','mem':'123']
#       for i in adict.keys():
#           self.data = 
        self.data = u'''点击display按钮
标签就会显示这些内容
标签中显示内容的方法是setText()
'''
        return self.data
    

class Qlabel(QtGui.QWidget,Example):
    def __init__(self):
        QtGui.QWidget.__init__(self)
        self.createLabel()

    #layout,create button,create label
    def createLabel(self):
        self.button = QtGui.QPushButton('Dispaly',self)
        self.label = QtGui.QLabel(self)
    
        layout = QtGui.QVBoxLayout()
        #layout.addStretch(1)
        layout.addWidget(self.button)
        layout.addWidget(self.label)
    
        self.setLayout(layout)
        self.setWindowTitle('AbsoluteLayout')
        self.resize(250,150)
    
        self.connect(self.button,QtCore.SIGNAL('clicked()'),self.showMessages)

    #display function
    def showMessages(self):
        emp = Example()
        char = emp.display()
        self.label.setText(char)




def main():
    app = QtGui.QApplication(sys.argv)

    absolute_layout = Qlabel()
    absolute_layout.show()

    app.exec_()

if __name__ == '__main__':

main()

该脚本实现的效果是点击display按钮，然后在标签中就会显示预先设定好的内容。

效果图如下：